St. Janvier, Quebec (1871 census)

St. Janvier was a census subdivision in Quebec, recorded in the 1871 Census of Canada with a population of 1,300. The administrative centroid was at approximately 45.712°N, 73.927°W.

Population

In 1871, St. Janvier had a population of 1,300: 640 male and 660 female residents.

Population trajectory across census years

Cross-year identity established by spatial polygon overlap (SAME_AS chains across the Canadian Census Subdivision boundary files).

Boundary continuity (non-identical overlaps)

Spatial polygon overlaps with adjacent census years where the boundary shifted enough that the SAME_AS chain didn't merge them. These show where the territory came from and went to even when it isn't tracked as the same persistent place.

Later boundary forms

• In a later year, this CSD contained St. Janvier, 1881 (94.8% of this CSD's polygon).

Neighbouring Census Subdivisions in 1871

In the 1871 census, St. Janvier shared boundaries with:

• St. Augustin
• St. Jérôme
• Ste. Anne
• Ste. Scholastique
• Ste. Thérèse, Parish

Full census record, 1871

The 1871 census recorded 17 measurements for this Census Subdivision across 4 categories.

Population & families (1871). This community's record includes 1,300 total population, 660 females, 640 males, 414 married persons, 250 families, 207 married females, 207 married males, 33 widowed persons, 18 widowed males, 15 widowed females. (Source: 1871 Census of Canada, V1T1.)

Age structure (1871). This community's record includes 853 single persons under 18, 438 single females under 18, 415 single males under 18. (Source: 1871 Census of Canada, V1T1.)

Buildings & housing (1871). This community's record includes 222 inhabited houses, 222 occupied houses, 5 houses under construction. (Source: 1871 Census of Canada, V1T1.)

Agriculture (1871). This community's record includes 11,666 total area (acres). (Source: 1871 Census of Canada, V1T1.)

Identifiers

• TCP UID: QC099005 — year-scoped identifier from the Canadian Census Subdivision boundary file
• Persistent place ID: PLACE_QC096009_1881_1921 — computed from spatial-overlap chains across census years
• Wikidata: not yet grounded. This page covers a place whose persistent identity has not yet been linked to a Wikidata entity. Identification is via TCP UID and spatial polygon only.

Sources

Census tabulations from the 1871 Census of Canada, transcribed and georeferenced by the Canadian Peoples / TCP project, hosted at the HGIS Lab, University of Saskatchewan. Persistent place identity computed from spatial-overlap chains across all available census years (1851–1921). Identity grounding to Wikidata performed via the HGIS Canada Knowledge Graph project's MCP-assisted disambiguation pipeline. See the About / Methodology page for the full data pipeline.

Cite this page

Clifford, J. (2026). "St. Janvier, Quebec (1871 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/qc/st-janvier-qc099005-1871/.